Dominic McIver Lopes, The Ontology of Interactive Art, Journal of Aesthetic Education 35.4 (2001) 65-81
Interactive computer art works are types whose tokens are generated by our interactions with them. Interactive art work types are related to their tokens in the same way as games are related to playings of them. This explains how interactive art work tokens can vary widely in their aesthetically-relevant properties whilst instantiating the types to which they belong. It also explains the importance of our interactions with interactive works, laying a foundation for a correct account of the nature and value of interactive art.